Home / 87,938.86-121,361.58-49,685.14

Finding the Fourth Proportional to 87,938.86, 121,361.58 and 49,685.14

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Solution

The fourth proportional to 87,938.86, 121,361.58 and 49,685.14 is: 68,568.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,938.86 : 121,361.58 = 49,685.14 : x
  2. Step 2: Convert to fraction form
    87,938.86/121,361.58 = 49,685.14/x
  3. Step 3: Cross multiply
    87,938.86x = 121,361.58 × 49,685.14
  4. Step 4: Simplify right side
    87,938.86x = 6,029,867,092.92
  5. Step 5: Solve for x
    x = 6,029,867,092.92/87,938.86
  6. Step 6: Final answer
    x = 68,568.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.